I didn’t understand this question please help

I Didnt Understand This Question Please Help

Answers

Answer 1

Answer:

(a) y = 4x - 15

(b) y = (-1/4)x + 2

Step-by-step explanation:

The slope-intercept equation form for a line is
y = mx + b

Here m is the slope (rise/run) and b is the y-intercept ie the y-value at which the line crosses the y axis at x = 0. Drawing a picture helps

If two lines have the same slope, they are parallel
If another line has slope -(1/m) then  it is perpendicular to the line with slope m

First convert the line equation into slope-intercept form as follows
8x - 2y = 1

Subtract 8x from both sides ==> -2y = 1- 8x
Multiply both sides by -1 ==> 2y = 8x - 1

Divide both sides by 2:
y = 4x - 1/2

Parallel line

y = 4x - 1/2

A parallel line should also have slope = 4

So it's equation will be of the form
y = 4x + b

To determine b, the y intercept, plug in values for x = 4, y =1 ad solve for b
1 = 4(4) + b ==> 1 = 16 + b ==> b = -15

So the equation of a line parallel to 8x - 2y = 1 passing through (4,1) is
y = 4x - 15   (Answer a)

Perpendicular Line

A perpendicular line to y = 4x - 1/2  should have the negative of the reciprocal of the slope
So the slope of the perpendicular line is -(1/4)

Equation is

y =  -(1/4)x  + b

Plug in the point values for (4, 1) to get
1 = - (1/4)(4) + b

1 = -1 + b

b = 2

So the equation of a line perpendicular to 8x - 2y = 1 passing through (4,1) is y = -(1/4)x + 2


Related Questions

1500 as a mixed number, please help QUICK

Answers

Answer:

divid 1500 to 50

Step-by-step explanation:

Answer: 1500 0/0

Step-by-step explanation:

I = prt Time = 3 years Interest Rate = 5% Principal = $7,430 Use the information to answer the question. How much interest is paid? $111.45 $1,114.50 $11,145 $111,450​

Answers

Answer:I = prt

p = 7430

r = 5%....turn to decimal = 0.05

t = 3

I = (7430)(0.05)(3)

I = 1114.50 <===

Step-by-step explanation:

Answer:

I = prt

p = 7430

r = 5%....turn to decimal = 0.05

t = 3

I = (7430)(0.05)(3)

I = 1114.50 <===

Step-by-step explanation:

Manuel saved $375 in 6 months. At this rate, how much will he save in 2 years?

Answers

At this rate he would save 1,500 in 2 years

There are 12 months in a year

12 / 6 = 2 so it’s half

Add 375 4 times which would give me the answer

- If this helped I would appreciate it if you marked this brainlest

which statement is true about the points p and p

Answers

Answer:

They are equal

Step-by-step explanation:

What is the value of f(x)=5-1/2 when x =4

Answers

Answer:

9/2

Step-by-step explanation:

f(x)=5-1/2

plug in 4

f=9/2

9/2

How far would the plane fly in t hours at this speed

Answers

Answer: 610 MPH

Step-by-step explanation:

915 divided by 1.5=610 MPH

610 divided by 2=305 MP Half n Hour

610+305=915

PLEASE HELP ASAP! BRISNLIEST! Write the equation of each graph.

Answers

Answer:

-x^2-2x+3

1/2x^2-2x-1

Step-by-step explanation:

NEED HELP ASAP
Find the constant of proportionality in the data set below.
Time (s) Distance (cm)
5 42
10 84
15 126
20 168

Answers

Answer:

To the left, the constant is plus 5.

To the right, the constant is plus 42.

Step-by-step explanation:

What is the value of 9 by the power of 2+ 3 by the power of 3 - 30 divided by 6?

HELP MEH PLS!!! I will give Brainlyest to whoever answers first and correctly. Also tell me if I’m wrong dose this ^ symbol mean division?!?!

Answers

I do not know how to do this but i can tell you ^ means exponent not division. So 3^2 would be the same as [tex]3^{2}[/tex]

A jar contains only one blue tile, one green tile, one red tile, and one yellow tile. If a tile is chosen at random and then replaced in the jar, and then a second tile is chosen at random, how many of the possible outcomes contain at least one red tile? 1 2 4 7

Answers

Answer:

7

Step-by-step explanation:

Bluegreen

Bluered

Blueyellow

Greenblue

Greenred

Greenyellow

Redblue

Redgreen

Redyellow

Yellowblue

Yellowgreen

Yellowred

Answer: 7

Step-by-step explanation:

Took on computer

find the zeros of the function: to the nearest hundredth

Answers

Answer:

The zeros of the function:

[tex]x=5.53 ,[/tex]  [tex]x=3.22[/tex]  

Step-by-step explanation:

Given the function

[tex]f\left(x\right)=2x^2-17.5x+35.6[/tex]

To find zeros, put f(x)=0

[tex]0=2x^2-17.5x+35.6[/tex]

[tex]\mathrm{Multiply\:both\:sides\:by\:}10[/tex]

[tex]0\cdot \:10=2x^2\cdot \:10-17.5x\cdot \:10+35.6\cdot \:10[/tex]

[tex]0=20x^2-175x+356[/tex]

switch sides

[tex]20x^2-175x+356=0[/tex]

subtract 356 from both sides

[tex]20x^2-175x+356-356=0-356[/tex]

[tex]20x^2-175x=-356[/tex]

divide both sides by 20

[tex]\frac{20x^2-175x}{20}=\frac{-356}{20}[/tex]

[tex]x^2-\frac{35x}{4}=-\frac{89}{5}[/tex]

[tex]\mathrm{Add\:}a^2=\left(-\frac{35}{8}\right)^2\mathrm{\:to\:both\:sides}[/tex]

[tex]x^2-\frac{35x}{4}+\left(-\frac{35}{8}\right)^2=-\frac{89}{5}+\left(-\frac{35}{8}\right)^2[/tex]

applying perfect square

[tex]\left(x-\frac{35}{8}\right)^2=\frac{429}{320}[/tex]

[tex]\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}[/tex]

solving

[tex]x-\frac{35}{8}=\sqrt{\frac{429}{320}}[/tex]

[tex]x=\frac{\sqrt{2145}}{40}+\frac{35}{8}[/tex]

[tex]x=5.53[/tex]

also solving

[tex]x-\frac{35}{8}=-\sqrt{\frac{429}{320}}[/tex]

[tex]x=-\frac{\sqrt{2145}}{40}+\frac{35}{8}[/tex]

[tex]x=3.22[/tex]

[tex]\mathrm{The\:solutions\:to\:the\:quadratic\:equation\:are:}[/tex]

[tex]x=5.53 ,[/tex]  [tex]x=3.22[/tex]  

Therefore, the zeros of the function:

[tex]x=5.53 ,[/tex]  [tex]x=3.22[/tex]  

Find an acute angle that satisfies csc Theta=3.1297

Answers

The acute angle that satisfies the equation is 18.6 degrees

How to find an acute angle that satisfies the equation?

The equation is given as

csc Theta = 3.1297

Rewrite properly as

csc(∅) = 3.1297

In trigonometry

csc(∅) = 1/sin(∅)

So, we have

1/sin(∅) = 3.1297

This means that

sin(∅) = 1/3.1297

Evaluate the expression

sin(∅) = 0.3195

Take the arc sin of both sides

∅ = sin-1(0.3195)

Evaluate the arcsin expression

So, we have

∅ = 18.6

Hence, the acute angle that satisfies the equation is 18.6 degrees

Read more about acute angle at

https://brainly.com/question/6979153

#SPJ1

Which digit is in the thousandth place? 134.927

Answers

Answer:

.007 is in the thousandths place.

Step-by-step explanation:

In decimals it goes tenths, houndredths, thousandths, and so on.

Need help finding the measures

Answers

X is 10 ( equate both angles and solve)

M1. 43 degrees (plug x and solve)
M4. 60 degrees (definition of an equilateral triangle, every angle is 60 degrees)
M5. 60 degrees
M6. 60 degrees
M9. 43 degrees (plug x and solve)
M3. 180 degrees minus angle m4 = 120 degrees(looks like it too )
M2. 180-(43+120) = 17 degrees
M8. Pretty much m3 = 120
M7. Pretty much m2 = 17 degrees


I hope nothing wrong with my math but the logic should be sound !




Angle (2+5+7)= 180 - 2(43) = 94 degrees

Angle 2

Diet cola was on sale last week; it cost $10 for every 4 liters of diet cola. How many liters do you get per dollar?

Answers

Answer:

you get 0.4 litres for every dollar

A rectangular area of land is being sold off in smaller pieces. The total area of the land is 2^15 square miles. The pieces being sold are 8^3 square miles in size. How many smaller pieces of land can be sold at the stated size? Compute the actual number of pieces.
HELLPP PLS !!!

Answers

The number of smaller pieces of land that can be sold at the stated size is 2^6

How many smaller pieces of land can be sold at the stated size?

The given parameters are:

Total area = 2^15 square miles

Smaller piece = 8^3 square miles

The number of smaller pieces of land that can be sold at the stated size is

Number = Total area/Smaller piece

So, we have:

Number = 2^15/8^3

Rewrite as

Number = 2^15/2^9

Apply the law of indices

Number = 2^6

Hence, the number of smaller pieces of land that can be sold at the stated size is 2^6

Read more about quotients at

https://brainly.com/question/629998

#SPJ1

Choose a system of equations with the same solution as the following system:
4x − y = −11
2x + 3y = 5

A. 12x − 3y = −33
10x − 6y = −38

B. −4x − 9y = −21
−2x − 7y = −27

C. 4x + 3y = 5
10x + 5y = −1

D. 2x − 4y = −16
4x − 4y = 44

please help 100points!!!!
And i will make brainlest
only if the answer is right and there is a good explanation....

Answers

Answer:

Hope it can help you and Mark me as a brainlist....
I thinks it is b cause

a) Let X be a random variable that can assume only positive integer values, and assume its probability function is P(X -n) A/3^n for some constant A (n> 1). Find A.
b) Let X be a continuous random variable that can assume values between 0 and 3, and assume its density function is fx(x)- B(x2 +1) with some constant B (0< x ,3). Find B.

Answers

Answer:

a) The value of A = 2

b) The value of [tex]B = \dfrac{1}{12}[/tex]

Step-by-step explanation:

a)

Given that:

X should be the random variable that assumes only positive integer values.

The probability function; [tex]P[X = n] = \dfrac{A}{3^n}[/tex] for some constant A and n ≥ 1.

Then, let [tex]\sum \limits ^{\infty}_{n =1} P[X =n] = 1[/tex]

This implies that:

[tex]A \sum \limits ^{\infty}_{n =1} \dfrac{1}{3^n}= 1[/tex]

[tex]A \times \dfrac{\dfrac{1}{3}}{1 - \dfrac{1}{3}} = 1[/tex]

[tex]A \times \dfrac{\dfrac{1}{3}}{\dfrac{2}{3}} = 1[/tex]

[tex]A \times \dfrac{1}{2}=1[/tex]

A = 2

Thus, the value of A = 2

b)

Suppose X represents a e constant A (n> 1). Find A.

b) Let X be a continuous random variable that can assume values between 0 and 3

Then, the density function of x is:

[tex]f_x(x) = \left \{ {{B(x^2+1)} \ \ \ 0 \le x \le 3 \ \ \ \atop {0} \ \ \ otherwise} \right.[/tex]

where; B is constant.

Then, using the property of the probability density function:

[tex]\int ^3_0 \ B (x^2+1 ) \ dx = 1\\[/tex]

Taking the integral, we have:

[tex]B \Big [\dfrac{x^3}{3} +x \Big ]^3_0 = 1[/tex]

[tex]B \Big [\dfrac{3^3}{3} +3 \Big ]= 1[/tex]

[tex]B \Big [\dfrac{27}{3} +3 \Big ] = 1[/tex]

B [ 9 +3 ] = 1

B [ 12 ] = 1

Divide both sides by 12

[tex]B = \dfrac{1}{12}[/tex]

The variables y and x have a proportional relationship, and y = 7 when x = 2 What is the value of x when y = 212 Enter your answer in the box x = 1

Answers

Answer:

proportional relational ship  

y= kx

7 = k2

solve for k

7/2 =k

y = 7/2 x

if y = 21

21 =7/2 x

solve for x

multiply by 2/7 on each side

21* 2/7 = 2/7*7/2 x

6 =x

Figure out the probability below (ONLY REAL ANSWERS PLEASE)

Answers

Answer:

2/35

Step-by-step explanation:

fifteen total, 4 live in Gaston

so

4/15 times 3/14

because there is only 14 left to be selected and 3 left in Gaston

so 0.05714285714

or 2/35

What system of equations is shown on the graph below?

On a coordinate plane, 2 lines intersect around (1.8, negative 0.8).

2 x + y = 3 and 3 x minus 4 y = 8
2 x minus y = 3 and 3 x + 4 y = 8
2 x + y = 3 and 3 x minus 4 y = 2
2 x minus y = 3 and 3 x minus 4 y = negative 2

Answers

Answer:

i thnk it is c correct me if i am rong

Step-by-step explanation:

Answer:

(C) I got it right

Step-by-step explanation:

on edge

It is 2.1 km from Jessica's house to the nearest mailbox. How far is it in meters?
Be sure to include the correct unit in your answer.

Answers

Answer:

2100 meters

Step-by-step explanation:

REMEMBER: 1 km = 1000 m

2.1 km x 1000= 2100 meters

hope this helps ;)

Which equation represents a function that is nonlinear?




y=5x y=37 y=x2-25 y=2/3x+67

Answers

Answer:

I dont get itt

Step-by-step explanation:

pleasee helppp insert two arithnetic means between -5 and 1

Answers

Answer:

a₂ = -3

a₃  = -1

Step-by-step explanation:

We have to  insert two arithmetic means between -5 and 1

Let a₁ and b₂ be the two arithmetic means between -5 and 1

-5, a₂, a₃, 1

Here,

a₄ = 1a₁ = -5

We know that the nth term of an Arithmetic sequence

aₙ = a₁ + (n-1)d

a₄ = -5 + (4-1)d

1 = -5 + 3d    

1  + 5 = 3d

3d = 6

Dividing both sides by 2

d = 2

Also

a₂ = a₁ + (2-1)d

a₂ = -5 + d

a₂ = -5 + 2          ∵ d = 2

a₂  = -3

a₃ = a₁ + (3-1)d

a₃  = -5 + 2d

a₃  = -5 + 2(2)   ∵ d = 2

a₃  = -5 + 4

a₃  = -1

Thus,

a₂ = -3

a₃  = -1

Thus, the sequence becomes:

-5, -3, -3, 1

Kim drew a map of the Mississippi River. The scale was 5 centimeters represents 120 miles. The actual length of the Mississippi River is 2,320 miles. Approximately what is the length in centimeters of the Mississippi River on the map?

Answers

Considering the definition of scale, the length of the Mississippi River on the map is 96.667 cm.

Definition of scale

The scale of a cartographic representation, or map scale, is the relationship of similarity between the real dimensions of the geographical space represented and those of its image on the map.

Scale is the relationship between a real object (for example, the surface of the Earth or a portion of it) and the representation that is made of it.

The scale is represented as a fraction as follows: measured on the map/measured in reality

Length of the Mississippi River on the map

In this case, you know that:

The scale was 5 centimeters represents 120 miles. The actual length of the Mississippi River is 2,320 miles.

Considering the definition of scale, you can calculate the length of the Mississippi River on the map as follow:

5 cm/ 120 miles= measured on the map/2320 miles

(5 cm/ 120 miles)× 2320 miles= measured on the map

96.667 cm= measured on the map

Finally, the length of the Mississippi River on the map is 96.667 cm.

Learn more about scale:

https://brainly.com/question/26467371

https://brainly.com/question/16136369

https://brainly.com/question/9352480

#SPJ1

A line segment has endpoints E(–2, 8) and F(10, –6). What is the midpoint? ( , )

Answers

The midpoint of the line segment with the endpoints is (4, 1)

How to determine the midpoint of the line segment with the endpoints?

The endpoints are given as:

E= (-2,8) and F = (10, -6)

The midpoint of the line segment with the endpoints is calculated as

Midpoint = 0.5 * (x1 + x2, y1 + y2)

So, we have:

Midpoint = 0.5 * (-2 + 10, 8- 6)

Evaluate the sum

So, we have:

Midpoint = 0.5 * (8, 2)

Evaluate the products

So, we have:

Midpoint = (4, 1)

Hence, the midpoint of the line segment with the endpoints is (4, 1)

Read more about midpoint at

https://brainly.com/question/24311350

#SPJ1

Help please due soon

Answers

1. h=6
2. y=-1
3.t=2
4. d=2.1
5.k=0
6. -13 1/3

Answer:

1. H=6

2. Y= -1

3. T= 2

4. D= 2.1

5. K= 0

6. -13 1/3

Step-by-step explanation:

Please help! Use the number line to compare the numb Drag and drop the numbers to place them in increasing order. -1.7, 1.9, -0.8, 0.9

Answers

Answer: -1.7, -0.8, 0.9, 1.9

Divide 2x^4+5x^3+11x^2+8x by x^2+x

Answers

Attached you will find a step by step solution.
Hope this helps 2x2+3x+8

What is the step by step equation for the problem
6(5x - 7) = -3(4x + 7) + 6

Answers

Answer:

[tex]x = \frac{9}{14} [/tex]

Step-by-step explanation:

6 (5x - 7) = -3 (4x + 7) + 6

30x - 42 = -12x - 21 + 6

30x - 42 = -12x - 15

30x + 12x = -15 + 42

42x = 27 ÷ 42

x = 27/42

simplify with factor 3

[tex]x = \frac{9}{14} [/tex]

Other Questions
complete exercises 22 - 24.Xh(x)-3-24-20-1806102-441813. Two of the zeros of h(x) are listed in the table. Between which two values of x does the IntermediateValue Theorem guarantee that a third value of x exists such that h(x) = 0? Explain your reasoning. A deposit you make atan ATMStreak BoostStreak SoverWhat is direct deposit?A deposit you makebetween two bankaccounts50/50A deposit an employermakes into anemployee's accountAn interest paymentfrom the bank read the following sentence from jack london's white fang: one ear was uttering quick, eager whines, lunging at the length of his stick toward the darkness, and desisting now and again in order to make frantic attacks on the stick with his teeth. based on the context in this sentence, what is the best explanation for desisting? (1 point) a depending on others b increasing in frequency c misleading, confusing d stopping, relenting What is the purpose of having the Periodic Table? 8(5-6v)=-7-vhelp please :)) 3. A car can accelerate at a rate of 0.5 meters per second squared if it is already moving forwards at an initial velocity of 6 meters per second.a. Write a differential equation for velocity. Write an initial condition for the velocity.b. Solve the initial value problem you wrote in (a) to find a formula for velocity.c. Use the formula for the velocity you found in (b) to write an initial value problem for the cars position. Assume that the car is initially at position 0.d. Solve the initial value problem you wrote in (c) to find a formula for the position of the car.e. How fast is the car going after 30 seconds? lisa is a mortgage underwriter who is analyzing a borrowers ability to repay a home loan. in addition to the borrowers income, lisa is also looking at the type and value of the property financed. all of the following are true regarding lisas property analysis, except the for the given set, first calculate the number of subsets for the set, then calculate the number of proper subsets. { 5, 7, 17, 15 } hydrochloric acid + chromium hydrogencarbonate = how do I complete this word equation and then convert it to a BALANCED word equation just need help on 17-18! homework is due tonight! ill give brainliest! 15 women can complete a piece of work in 16 days. How many womenshould leave so that the work would be finished in 20 days? (C3H8) What mass of carbon dioxide (in kg ) is produced upon the complete combustion of 40.2 L of propane (approximate contents of two 5-gallon tanks)? Assume that the density of the liquid propane in the tank is 0.621 g/mL . (Hint: Begin by writing a balanced equation for the combustion reaction.) Psychological information that sounds scientific but has not been systematically tested using the scientific method. a drop of saras blood was mixed with anti-a serum. another drop was mixed with anti-b serum. and a third drop was mixed with anti-rh serum. clumping was not seen in any of the tests. what does this indicate? select all that apply. Which of the following is a physical change?A) Magnesium reduces dry ice, forming blackcarbon and MgO.B) Water forms hydrogen and oxygen gasesvia electrolysis. C) The pH of water is raised by dissolvingsodium hydroxide.D) Ice forms as water is poured onto dry ice.E) Water hydrates cobalt chloride, turningit from blue to pink. 5. Discuss the role of Eleanor Roosevelt in getting the Universal Declaration of Human Rights adopted by the UN General Assembly? Two in-line skaters, Nell and Kristin start from the same point and skate in the same direction.Nell skates at 8 mile per hour and Kristin skates at 10 miles per hour. if they can keep up the pace for 4.5 hours, how far apart will they be at the end of the time? Sally has a car that accelerates at 5 m/s. If the car has a mass of 1000 kg, how much force does tcar produce?F=m=a= The area known as the visual word form area or ""brains letterbox"" is located in the _____________ lobe and is essential to the _____________ processor. a business wants to evaluate how much they're spending on their customers, versus how much their customers go on to spend. if they want to see how much they spent for a customer to take action on a campaign, that measurement would be: